Saturation is best defined as:
A)a mixing ratio of at least 100 g/kg.
B)equal numbers of water molecules evaporating from and condensing into a water surface.
C)the point when water molecules completely stop evaporating from a water surface.
D)a vapor pressure greater than 1000 mb.

Question

Quizplus · Accepted Answer

Saturation occurs when the rate of evaporation equals the rate of condensation. This means that the air is holding as much water vapor as it can at a given temperature and pressure, which is known as the saturation point. Therefore, choice B is the most accurate description of saturation.

Saturation Is Best Defined As